<div>
  By default, builds of this project may be executed on any agents that
  are available and configured to accept new builds.
  <p>
  When this option is checked, you have the possibility to ensure that builds of
  this project only occur on a certain agent, or set of agents.
  <p>
  For example, if your project should only be built on a certain operating
  system, or on machines that have a certain set of tools installed, or even one
  specific machine, you can restrict this project to only execute on agents that
  that meet those criteria.
  <p>
  The help text for the <i>Label Expression</i> field, shown when this option is
  checked, provides more detailed information on how to specify agent criteria.
</div>
